EP 0202337 B1 19930811 - STEPPING MOTOR
Title (en)
STEPPING MOTOR
Publication
Application
Priority
JP 23553684 A 19841108
Abstract (en)
[origin: WO8603071A1] Stepping motor which is used for feeding paper and a typewriting base in a machine for office automation, such as a printer and a typewriter. A plurality of stator yokes (2), (3), (4), (5), are molded out of a resin unitarily to a predetermined inner diameter to form a stator (1). One side portion of a rotary shaft (11a) of a rotor (11) is supported on a bearing (12a) in a bearing retaining portion (1a) provided at one side end section of a cylindrical portion of the stator (1). A bracket (14) retaining a bearing (12b) which supports the other side portion of the rotary shaft (11a) of the rotor (11) is fitted in an opened end section of the cylindrical portion of the stator (1). Owing to the above-described construction, the centering of the bearing can be done easily, and the clearance between the outer surface of the rotor and the inner surface of the stator can be maintained easily. This enables an inexpensive high-quality stepping motor to be provided.
IPC 1-7
IPC 8 full level
H02K 3/52 (2006.01); H02K 5/167 (2006.01); H02K 5/22 (2006.01); H02K 21/14 (2006.01); H02K 37/14 (2006.01)
CPC (source: EP US)
H02K 3/525 (2013.01 - EP US); H02K 5/1672 (2013.01 - EP US); H02K 5/225 (2013.01 - EP US); H02K 21/14 (2013.01 - EP US); H02K 37/14 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 8603071 A1 19860522; DE 3587525 D1 19930916; DE 3587525 T2 19931209; EP 0202337 A1 19861126; EP 0202337 A4 19900522; EP 0202337 B1 19930811; JP 2563243 B2 19961211; JP S61116963 A 19860604; US 4714850 A 19871222
DOCDB simple family (application)
JP 8500611 W 19851105; DE 3587525 T 19851105; EP 85905435 A 19851105; JP 23553684 A 19841108; US 88703186 A 19860708